Getting a truck home with a bad differential

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by DMAX66, Oct 18, 2018.

  1. BoxCarKidd

    BoxCarKidd Road Train Member

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    Do tandem drives not normally wear out the RR tires first? Followed by the LR, LF and the RF last?
    If you watch trucks turn sharply in the parking lot, especially bobtail, do they not tend to pivot on the front drive and scrub the rears as stated?
    Right side tires all wearing out first due to road conditions cannot explain the RF drives wearing the least.
    Have you ever noticed on even looking surfaces the RR and LF often tend to spin first?
    Did you ever notice the front drive pinion gear is on the left side of the ring gear. The rear drive pinion is on the right side of the pinion, same as a car.
    I know it starts sounding like hip wader time but it is hard to explain and understand things we cannot see.
    Studying things like yaw sensors in new cars and how it effects aircraft kind of opens up those thought waves. How can a wing create lift and two guys with a bicycle shop make one that worked?
    This is more of a centrifugal force and transfer of torque through the spider gears issue. That is why one side is favored over the other under high torque. That is to the best of my understanding at this time.
     
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  3. Hulld

    Hulld Road Train Member

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    Just checked mine and it only drives on the rear axel the front axel does has no drive.
     
  4. swaan

    swaan Road Train Member

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    Tell me how you came to this conclusion?
     
  5. AModelCat

    AModelCat Road Train Member

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    Torque+Distribution+with+Power+Divider+Unlocked.jpg
    This is the path of power with the power divider unlocked. This same diagram comes from EATON so if you want to call them up and argue it with them, go right ahead.
     
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  6. swaan

    swaan Road Train Member

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    Thank you Amodelcat.

    Sometimes I feel like I'm just beating my head against a wall..

    I'm done here as well.
     
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  7. Oxbow

    Oxbow Road Train Member

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    He may have a tag on the front?
     
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  8. Hulld

    Hulld Road Train Member

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    It’s a single axel lol
    Sorry couldn’t resist lol
     
  9. swaan

    swaan Road Train Member

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    Oh geez, ok you got me. Lol!!!
     
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  10. AModelCat

    AModelCat Road Train Member

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    Got me too lol.
     
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  11. Hulld

    Hulld Road Train Member

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    I was going to play it out a say I jacked it up and checked it but I didn’t have the heart.
     
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